TORONTO, ONTARIO--(CCNMatthews - April 24, 2007) - David Gower, President & CEO of Castillian Resources Corporation (Castillian) (TSX VENTURE:CT) announces that Castillian Resources Corp. has intersected two intervals of nickel-copper sulphide mineralization in the first drill hole of the current phase of drilling on the Metago zone at the Mangabal Project, Brazil. Hole CRMS-07-08 intersected 9.45 meters grading 1.17% nickel, 0.28% copper, 0.03% cobalt in the upper interval and 3.0 meters grading 1.22% nickel, 0.22% copper, 0.04% cobalt with higher grade sections within each zone (see table below for details). The vertical depths of the intersections are approximately 36 meters and 49 meters respectively. This hole confirms continuity of the down dip extension of the sulfide body at the Metago zone which was last drilled in 2005 by Falconbridge on behalf of the joint venture. A total of six drill holes have been completed of the planned 20 drill hole program on the Metago zone (see Figure 1 attached). Assays are pending for the remaining five drill holes and three of the pending holes have also intersected significant sulphide mineralization. These mineralized holes confirm the continued extension of the zone down dip and along strike/plunge of the previous drilling. All intersections to date are above 100 meters vertical depth and the zone remains open along plunge to the southwest.

The company has completed 2650 line kilometers of airborne EM surveying to date using Geotech's VTEM system with B-field. The VTEM survey indicates that the conductor associated with the Metago Zone extends a further 100 meters beyond the drilling to the southwest in the down-plunge direction (total anomaly observed length greater than 350m). Preliminary modeling of the VTEM data has also identified 8 priority conductors associated with the Mangabal intrusion that will be drill tested (see Figure 2, attached). Castillian has mobilized a second drill to the Project, which is presently setting up to drill a high priority VTEM anomaly, approximately 800m along strike to the northeast from the Metago Zone. This conductor is approximately 700m in strike length, has elevated Nickel in soil geochemistry and a strong associated magnetic anomaly. Modeling and interpretation of the VTEM data covering the regional target areas continues.

Quality Control

The company employs a QA/QC protocol on all aspects of the analytical procedures. Core samples are sawn and one half of the NQ core is restored to the core box for future reference and one half of the core is sent for analysis. Samples are taken in approx. 1.0-metre intervals or less. Sample preparation is completed at the ALS-Chemex preparation lab Goiania, Brazil and assayed at ALS-Chemex lab in Vancouver, Canada using multi-acid digest/ ICP-AES technique. A blank sample is inserted every 40th sample and standard samples representing a range of grades are inserted at intervals of 1 in 20 samples. Five percent of pulps are re-analysed at SGS Laboratory Services in Belo Horizonte, Brazil. This is the same QA/QC protocol that was employed by Falconbridge (now Xstrata) in operating the project. The Quality Control and all aspects of the exploration program is supervised by Castillian Exploration Manager, Joel Hrominchuk, P.Geo., who is a Qualified Person as defined under National Instrument 43-101.

About Castillian Resources

Castillian Resources Corp. is a Canadian mineral exploration company listed on the TSX Venture Exchange under the symbol "CT" with approximately 82.7 million shares issued and outstanding. Castillian is partnered with Xstrata Nickel to explore the approximately 155,000 ha Mangabal nickel-copper project in Brazil. The company is earning an interest in the Las Aguilas Nickel-Copper-PGM Project in Argentina and has the right to purchase a 100% interest in the Kagera Project which comprises over 1,600 square kilometers in the highly mineralized Kabanga Nickel Belt in Tanzania and rights to acquire 100% of the Pederson deposit, an advanced gold exploration project in Bolivia which is currently under force majeure.

Statements in this release that are not historical facts are "forward-looking statements" within the meaning of the applicable securities legislation. Readers are cautioned that such statements are not guarantees of future performance and that actual developments or results may vary materially from those in these "forward-looking statements".